Patent application number | Description | Published |
20130223802 | Light conductor with a bundle of optic fibers and a method for bending the light condcutor - A light conductor having a bundle of optic fibers to transmit light, and a method for bending the light conductor made up of optic fibers. The light conductor with a bundle of optic fibers to transmit light of a light source, which can be coupled onto a first end portion of the light conductor, to a second end portion of the light conductor, includes a first portion and a curved second portion configured as a connecting portion, where the optic fibers in the second portion are fixed in place with respect to one another, free of tension, by means of a hardened cementing agent, while maintaining the curvature. | 08-29-2013 |
20130342906 | Optical Instrument - An optical instrument, in particular an endoscope, with a hollow instrument housing for receiving optical elements, wherein the distal end and/or proximal end is closed in a fluidtight manner via an end window. In order to create an optical instrument which, while being easy to assemble, ensures a reliable fluid-tight seal of the instrument housing even during autoclaving, it is proposed according to the invention that the end windows are each sealed off in a fluid-tight manner with respect to the instrument housing via at least one spring-loaded sealing element. | 12-26-2013 |
20140142385 | Endoscope with an adjustable viewing direction - An endoscope with an adjustable viewing direction includes a shaft, an image transmission device for transmitting an image from a distal end of the endoscope to a proximal end of the endoscope, a hermetically tight sheath around the image transmission device, with a light admission window at the distal end of the endoscope, a manipulating device at the proximal end of the endoscope, a swivel actuation device on the manipulating device for manual adjustment of an angle between the viewing direction and a longitudinal axis of the shaft, a magnetic coupling device for magnetically transmitting a force, parallel to the longitudinal axis of the shaft, between the swivel actuation device and a force transmission device inside the hermetically tight sheath, and a rotation actuation device on the manipulating device for manually rotating the viewing direction about the longitudinal axis of the shaft relative to the manipulating device. | 05-22-2014 |
20140235947 | Optics tube for an endoscope, endoscope, and method for mounting at least one rod lens in an optics tube - In an optics tube for an endoscope, a lens arrangement including at least one rod lens is received in the inside of the optics tube, wherein a sleeve is fixed on the at least one rod lens and at least partially encloses the rod lens, and wherein the sleeve is welded to the optics tube. The invention also relates to an endoscope having such an optics tube, and to a method for mounting at least one rod lens in the inside of an optics tube. | 08-21-2014 |
Patent application number | Description | Published |
20110040148 | Permanently sealed length compensation for endoscope shafts - An endoscope with an instrument housing and with a shaft that is mounted on the distal end of the instrument housing and consists of an outer tube and an inner tube that is mounted at least partly in the outer tube, so that the outer tube and the inner tube are mounted on the instrument housing so that they can move with respect to one another in the axial direction of the shaft. To provide an endoscope that ensures a constantly fluid-tight relative motion of the two shaft tubes with respect to one another, it is proposed with the invention that the outer tube and inner tube should be mounted on the instrument housing so that they are mobile with respect to one another in the axial direction of the shaft by means of at least one flexible membrane. | 02-17-2011 |
20110040151 | POSITIONING CLIP - A positioning clip to position an inner tube in an outer tube of an endoscope includes at least one inner support surface to support the positioning clip on the inner tube, at least one outer support surface to support the positioning clip on the outer tube, and a clamping device to clamp the positioning clip on the inner tube or on the outer tube. | 02-17-2011 |
20110292195 | Visual field apparatus for an endoscope - A visual field apparatus for an image transmission apparatus includes a channel that connects the proximal end and the distal end of the visual field apparatus for inputting the image transmission apparatus and an optical device on the distal end of the channel that is configured to influence the visual field of the image transmission apparatus. | 12-01-2011 |
20120123211 | OBJECTIVE LENS UNIT FOR ENDOSCOPES - An objective lens unit for endoscopes, with an objective lens having at least one lens and with an objective lens frame that is mounted in an endoscope housing in such a way that the insertion depth in the distal direction is restricted by a covering glass established in the endoscope housing and the objective lens frame that can be fastened in the endoscope housing forms the proximal end. In order to provide an objective lens unit for endoscopes that is simple to assemble and can be positioned in stationary manner in the endoscope housing, it is proposed according to the invention that the objective lens frame should be capable of being removably fastened in the endoscope housing. | 05-17-2012 |
20120123212 | Endoscope with adjustable viewing angle - An endoscope with adjustable viewing angle includes a light outlet device on the distal end of the endoscope to radiate illuminating light at an angle of illumination and a light conductor to transmit illuminating light to the light outlet device such that the light outlet device can be moved to adjust the angle of illumination in relation to the endoscope and such that a flexible portion of the light conductor is configured and positioned in order to be elastically reshaped when the light outlet surface is moved. | 05-17-2012 |
20120184820 | ENDOSCOPE WITH ADJUSTABLE VIEWING ANGLE - An endoscope with adjustable viewing angle includes a light conductor with a light inlet surface and a light outlet surface to transmit illuminating light from the light inlet surface to the light outlet surface of the light conductor. The light conductor can pivot with the light inlet surface and light outlet surface around a pivot axis in relation to the endoscope. | 07-19-2012 |
20120265023 | Exoscope - An exoscope serves for observing and illuminating an object field on a patient from a position set apart from the patient's body. A lens system serves to observe the object field and an illumination serves to illuminate the object field. A distance between the lens system and the object field can be modified by a bracket. A shaft comprises on its distal end a head member that is widened in comparison to it, so that the illumination reaches into the distal-side head member. Positioned in the head member is at least one radiating illumination unit whose radiant characteristic can be adjusted in such a way that the object field can be illuminated homogeneously at all possible distances from the lens system. Supply lines for the at least one illuminating unit are positioned in the shaft. | 10-18-2012 |
20130121005 | ILLUMINATING LENS, OBSERVATION DEVICE AND METHOD FOR PRODUCING AN ILLUMINATING LIGHT BEAM - An illuminating lens for a medical headlamp, endoscope or exoscope, to generate an illuminating light beam with variable light distribution includes a liquid lens with variable focal length to modify a focusing of the illuminating light beam. The invention also relates to an observation device with an illuminating lens of this type as well as a method to generate an illuminating light beam with variable light distribution. | 05-16-2013 |
Patent application number | Description | Published |
20140213697 | 2,2',6,6'-TETRAMETHYL-4,4'-METHYLENEBIS(CYCLOHEXYLAMINE) AS HARDENER FOR EPOXY RESINS - The present invention relates to a curable composition which comprises epoxy resin, epoxy-group-bearing reactive diluent and the hardener 2,2′,6,6′-tetramethyl-4,4′-methylenebis(cyclohexylamine), curing thereof, and the cured epoxy resin obtainable therefrom, and the use of 2,2′,6,6′-tetramethyl-4,4′-methylenebis(cyclohexylamine) as a hardener for epoxy resins in curable compositions with epoxy-group-bearing reactive diluent. | 07-31-2014 |
20140243557 | POLYAMINES AND PROCESS FOR PREPARATION THEREOF - The present invention relates to polyamines and to a process for preparing polyamines. | 08-28-2014 |
20150353491 | 2,6-BIS-(AMINOMETHYL)PIPERIDINE DERIVATIVES - The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to “2,6-BAMP derivatives”) which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to “2,6-DCP derivatives”) in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process. | 12-10-2015 |
Patent application number | Description | Published |
20080249307 | Method for Producing Ethylene Amines - Processes are described comprising: (i) providing a reactant comprising 1,2-dichloroethane; and (ii) reacting the reactant with ammonia to form a reaction product comprising one or more ethylene amines and hydrogen chloride, wherein the reaction is carried out in the presence of an organic, nitrogen- or phosphorus-containing compound which reacts with the hydrogen chloride to form an ionic liquid. | 10-09-2008 |
20080262266 | Method for the Production of Xylyendiamine - Process for preparing o-, m- or p-xylylenediamine by hydrogenation of o-, m- or p-phthalonitrile in the presence of a heterogenous catalyst, which comprises feeding a solution of the phthalonitrile in the corresponding isomer of crude xylylenediamine into the hydrogenation reactor, with the crude xylylenediamine having a purity in the range from 85 to 99.7% by weight and a content of higher boilers in the range from 0.3 to 15% by weight. | 10-23-2008 |
20090020407 | METHOD FOR PRODUCING PURE XYLYLENEDIAMINE (XDA) - A process comprising: continuously distilling a crude xylylenediamine in a column to form a pure xylylenediamine and a bottom product, wherein the column comprises a distillation column having a side draw and the distillation column is operated under a reduced pressure and a bottom temperature of 185° C. or less; drawing off the pure xylylenediamine from the side draw; evaporatively concentrating the bottom product of the distillation column in an additional evaporation stage to form a condensate; and returning the condensate into the distillation column | 01-22-2009 |
20100105940 | FULL CATALYST, PRODUCTION THEREOF, AND USE THEREOF IN AN AMMOXIDATION PROCESS - Catalysts comprising: (a) a support material comprising a component selected from the group consisting of aluminum oxide, silicon dioxide, aluminum silicate, magnesium silicate, titanium dioxide, zirconium dioxide, thorium dioxide, silicon carbide, and mixtures thereof; and (b) an active material comprising a mixture of vanadium (V) and antimony (Sb) and tungsten (W) and/or molybdenum (Mo), and optionally, at least one alkali metal, wherein the vanadium, antimony, tungsten and/or molybdenum and at least one alkali metal are each present in oxidic form; wherein the support material is provided in a form selected from the group of shapes consisting of spherical or approximately spherical and having a diameter of 2 to 10 mm, tubular or rod-shaped and having a diameter of 1 to 10 mm and a length of 2 to 20 mm, granular having a maximum diameter of 2 to 20 mm, and combinations thereof; and wherein the catalyst is diluted with an inert material; along with processes for preparing such catalysts and their use in preparing nitriles via gas phase ammonoxidation. | 04-29-2010 |
Patent application number | Description | Published |
20110061343 | Method and Device for Stretch Blow Molding or Blow Molding and Filling Sterile Containers - A method for blow molding and filling sterile containers of preforms in a container treatment device containing a blow module, in which the preforms are transferred from a heating device to the blow module via transport devices, and the containers are transported to a filling machine and filled, where a sterilization treatment is performed each at the preforms and the containers, a main sterilization treatment is performed at the preforms between the heating device and the blow module, and only a subsequent sterilization treatment is performed at the containers on the transport path to the filling machine. Further, a device having a main sterilization module between the heating device and the blow module, and a subsequent sterilization module between the blow module and the filling machine. | 03-17-2011 |
20110133369 | APPARATUS FOR SHAPING PLASTIC PREFORMS, COMPRISING A STERILE CHAMBER - An apparatus ( | 06-09-2011 |
20110133370 | DEVICE AND METHOD FOR STERILISING PLASTIC PARISONS - A device for producing plastic containers may include a heating element for heating plastic parisons, a transport system for transporting the plastic parisons along a pre-defined transport path, and a shaping element arranged along the transport path, downstream of the heating device. The shaping element shapes the plastic parisons to form plastic containers. The device has a sterilisation element that applies a free-flowing medium to a wall of the plastic parisons in order to sterilise said wall, the sterilisation device being arranged along the transport path of the containers such that the sterilisation takes place after the heating process applied to the containers in the heating device and before the end of the shaping process in the shaping element. | 06-09-2011 |
Patent application number | Description | Published |
20120077044 | BIODISINTEGRATABLE COMPOSITE FOILS - The use of an aqueous polyurethane dispersion adhesive is described for producing biodisintegratable composite foils where at least two substrates are adhesive-bonded to one another with use of the polyurethane dispersion adhesive, where at least one of the substrates is a biodisintegrable polymer foil. At least 60% by weight of the polyurethane is composed of diisocyanates, polyesterdiols, and at least one bifunctional carboxylic acid selected from dihydroxycarboxylic acids and diaminocarboxylic acids. | 03-29-2012 |
20120205022 | RUBBER MATERIAL WITH BARRIER MATERIAL MADE OF CYCLOOLEFIN COPOLYMERS - A rubber material is described, modified with a barrier material in the form of a copolymer which can be produced via ring-opening metathesis polymerization of a) at least one olefin monomer selected from the group consisting of monocyclic olefin monomers having one or two endocyclic C—C double bonds and bicyclic olefin monomers having one endocyclic C—C double bond and b) at least one polycyclic olefin monomer having at least two C—C double bonds. The barrier material can be used to reduce the gas permeability of the rubber material. | 08-16-2012 |
20120252926 | LATENTLY REACTIVE POLYURETHANE DISPERSION WITH ACTIVATABLE CROSSLINKING - A description is given of an aqueous polymer dispersion comprising at least one polyurethane, dispersed in aqueous phase and having one or more uretdione groups, and at least one solid polyamine with a deactivated surface, said dispersion being useful as an adhesive, coating material or sealant or for producing adhesive, coating or sealing compositions. The compositions can be activated thermally or by electromagnetic radiation. | 10-04-2012 |
20150072153 | BIODISINTEGRATABLE COMPOSITE FOILS - The use of an aqueous polyurethane dispersion adhesive is described for producing biodisintegratable composite foils where at least two substrates are adhesive-bonded to one another with use of the polyurethane dispersion adhesive, where at least one of the substrates is a biodisintegrable polymer foil. At least 60% by weight of the polyurethane is composed of diisocyanates, polyesterdiols, and at least one bifunctional carboxylic acid selected from dihydroxycarboxylic acids and diaminocarboxylic acids. | 03-12-2015 |